20904750

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 61401600

約数和(自身を除く): 40496850

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 27, 30, 38, 45, 50, 54, 57, 75, 90, 95, 114, 125, 135, 150, 163, 171, 190, 225, 250, 270, 285, 326, 342, 375, 450, 475, 489, 513, 570, 675, 750, 815, 855, 950, 978, 1026, 1125, 1350, 1425, 1467, 1630, 1710, 2250, 2375, 2445, 2565, 2850, 2934, 3097, 3375, 4075, 4275, 4401, 4750, 4890, 5130, 6194, 6750, 7125, 7335, 8150, 8550, 8802, 9291, 12225, 12825, 14250, 14670, 15485, 18582, 20375, 21375, 22005, 24450, 25650, 27873, 30970, 36675, 40750, 42750, 44010, 46455, 55746, 61125, 64125, 73350, 77425, 83619, 92910, 110025, 122250, 128250, 139365, 154850, 167238, 183375, 220050, 232275, 278730, 366750, 387125, 418095, 464550, 550125, 696825, 774250, 836190, 1100250, 1161375, 1393650, 2090475, 2322750, 3484125, 4180950, 6968250, 10452375, 20904750]

約数ペア:

[(1, 20904750), (2, 10452375), (3, 6968250), (5, 4180950), (6, 3484125), (9, 2322750), (10, 2090475), (15, 1393650), (18, 1161375), (19, 1100250), (25, 836190), (27, 774250), (30, 696825), (38, 550125), (45, 464550), (50, 418095), (54, 387125), (57, 366750), (75, 278730), (90, 232275), (95, 220050), (114, 183375), (125, 167238), (135, 154850), (150, 139365), (163, 128250), (171, 122250), (190, 110025), (225, 92910), (250, 83619), (270, 77425), (285, 73350), (326, 64125), (342, 61125), (375, 55746), (450, 46455), (475, 44010), (489, 42750), (513, 40750), (570, 36675), (675, 30970), (750, 27873), (815, 25650), (855, 24450), (950, 22005), (978, 21375), (1026, 20375), (1125, 18582), (1350, 15485), (1425, 14670), (1467, 14250), (1630, 12825), (1710, 12225), (2250, 9291), (2375, 8802), (2445, 8550), (2565, 8150), (2850, 7335), (2934, 7125), (3097, 6750), (3375, 6194), (4075, 5130), (4275, 4890), (4401, 4750)]